51756265715 has 32 divisors (see below), whose sum is σ = 81508170240. Its totient is φ = 30565555200.

The previous prime is 51756265711. The next prime is 51756265727.

51756265715 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51756265715 - 2² = 51756265711 is a prime.

It is a super-2 number, since 2×51756265715² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51756265711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3530366 + ... + 3544995.

It is an arithmetic number, because the mean of its divisors is an integer number (2547130320).

Almost surely, 2^51756265715 is an apocalyptic number.

51756265715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51756265715 is a deficient number, since it is larger than the sum of its proper divisors (29751904525).

51756265715 is a wasteful number, since it uses less digits than its factorization.

51756265715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075403.

The product of its digits is 2205000, while the sum is 50.

The spelling of 51756265715 in words is "fifty-one billion, seven hundred fifty-six million, two hundred sixty-five thousand, seven hundred fifteen".